Japanese phrase
こちらのほうが安いです。 ko chi ra no hō ga yasu i de su
Meaning
This one is cheaper.
When to use it
Says that one option costs less than another. It is a polite way to compare prices.
Example dialogue
青いのと赤いの、どちらにしますか？ ao i no to aka i no do chi ra ni shi ma su ka
Which one would you like, the blue one or the red one?
では、こちらのほうが安いです。 de wa ko chi ra no hō ga yasu i de su
Then, this one is cheaper.